Trillium

Trillium, a genus of perennial herbs native to North America and Asia. There are about 30 species, many of which are familiar wildflowers throughout much of the United States. The genus was named trillium, meaning triple, because the leaves, sepals, and petals grow in groups of three. There are six stamens. Trilliums are sometimes called wake-robins.

Trilliums grow from about 2 to 20 inches (5 to 50 cm) high, depending on the species. The flowers are borne singly at the top of the stems. Many species, such as the great white, purple, and painted trilliums, are cultivated. The great white trillium grows about 18 inches (45 cm) high. It bears large white blossoms that change to a pale rose as they age. The purple trillium grows 12 to 15 inches (30 to 38 cm) high and bears maroon blossoms. The painted trillium grows to about 18 inches (45 cm) and has white flowers streaked with crimson.

Trilliums grow best in rich, moist soil and partial shade. Propagation is by seeds or rootstock division.

The great white trillium is Trillium grandiflorum: the purple trillium, T. erectum; the painted trillium. T. undulatum. Trilliums belong to the family Melanthiaceae.

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